List-I | List-II |
A. Metacentric chromosome | I. Chromosome has a terminal centromere |
B. Sub-metacentric chromosome | II. Middle centromere forming two equal arms of chromosome |
C. Acrocentric chromosome | III. Centromere is slightly away from the middle of chromosome resulting into two unequal arms |
D. Telocentric chromosome | IV. Centromere is situated close to its end forming one extremely short and one very long arm |
The correct matches are:
A. Metacentric chromosome - II. Middle centromere forming two equal arms of chromosome.
B. Sub-metacentric chromosome - III. Centromere is slightly away from the middle of chromosome resulting into two unequal arms.
C. Acrocentric chromosome - IV. Centromere is situated close to its end forming one extremely short and one very long arm.
D. Telocentric chromosome - I. Chromosome has a terminal .
Therefore, the correct option is (4): A-II, B-III, C-IV, D-I.
Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R.
Assertion A : The potential (V) at any axial point, at 2 m distance(r) from the centre of the dipole of dipole moment vector
\(\vec{P}\) of magnitude, 4 × 10-6 C m, is ± 9 × 103 V.
(Take \(\frac{1}{4\pi\epsilon_0}=9\times10^9\) SI units)
Reason R : \(V=±\frac{2P}{4\pi \epsilon_0r^2}\), where r is the distance of any axial point, situated at 2 m from the centre of the dipole.
In the light of the above statements, choose the correct answer from the options given below :